DRV10866 Datasheet, PDF (1/14 Pages) Texas Instruments – 5-V, THREE-PHASE, SENSORLESS BLDC MOTOR DRIVER

DRV10866
www.ti.com
SBVS206 – NOVEMBER 2012
5-V, THREE-PHASE, SENSORLESS BLDC MOTOR DRIVER
FEATURES
1
•2 Input Voltage Range: 1.65 V to 5.5 V
• Six Integrated MOSFETS With 680-mA Peak
Output Current
• Ultralow Quiescent Current: 5 µA (typ) in
Standby Mode
• Total Driver H+L R_DSOn 900 mΩ
• Sensorless Proprietary BMEF Control Scheme
• 150° Commutation
• Synchronous Rectification PWM Operation
• Selectable FG and ½ FG Open-Drain Output
• PWM_IN Input from 15 kHz to 50 kHz
• Lock Detection
• Voltage Surge Protection
• UVLO
• Thermal Shutdown
APPLICATIONS
• Notebook CPU Fans
• Game Station CPU Fans
• ASIC Cooling Fans
DESCRIPTION
DRV10866 is a three phase, sensorless motor driver with integrated power MOSFETs with drive current
capability up to 680 mA peak. DRV10866 is specifically designed for low noise and low external component
count fan motor drive applications. DRV10866 has built in over-current protection with no external current sense
resistor needed. The synchronous rectification mode of operation achieves increased efficiency for motor driver
applications. DRV10866 outputs either FG or ½ FG to indicate motor speed with open drain output. A 150°
sensorless BEMF control scheme is implemented for a three phase motor. DRV10866 is available in the
thermally efficient 10-pin, 3-mm x 3-mm x 0.75-mm SON (DSC) package. The operating temperature is specified
from -40°C to 125°C.
TYPICAL APPLICATION
100 kW
1 FG
PWM 10
2 COM
CS 9
3.8 kW
PWM_IN
V_CC
2.2 mF/
6.3 V
3 VCC
4U
5 GND
FGS 8
V7
W6
M
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2012, Texas Instruments Incorporated